Responses

It's her mother in the reflection.. . She had a huge influence on her in her past life and it affected not only how she treated the children but behaved (remember she took on a fake lover because of her mother's words.. ) thus in that moment it's not really "her" speaking but I'm sure there's something to what you said I also feel their might be some connection to the previous empress and why the marquis choose her as his wife..
Have you noticed her reflection on her window? Its not her right? Her hair is straight af while her hair in th reflection is somehow curly and tied up. I think Shulli’s past life was a manifestation of her an old spirit reincarnation. The church itself tried to kill her becauae maybe they gave something that related to Shulli and the late empress. It's not just about Shulli’s uncanny copy of the late empress. Maybe that's why the late marchess also created a plan against the emperor. Idk its just my theory ( ̄∇ ̄")